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1. 发明授权

US12012878B2 Actuator and method for operating an actuator 有权
公开(公告)号：US12012878B2
公开(公告)日：2024-06-18
申请号：US17908435
申请日：2021-03-01
申请人： FREEVALVE AB
发明人： Anders Höglund , Eric Griess , Daniel Jakobsson , Urban Carlson
IPC分类号： F01L1/46 , F01L9/16
CPC分类号： F01L1/465 , F01L9/16 , F01L2820/034
摘要： An actuator and a method for controlling such an actuator suitable for operating at least one gas exchange valve arranged in a cylinder head of an internal combustion engine. The actuator includes: an actuator piston disc, a cylinder volume adapted for the actuator piston disc, where the actuator piston disc divides the cylinder volume in a first portion and a second portion, an inlet channel arranged between a pressure fluid inlet and the first portion of the cylinder volume, a controllable first inlet valve arranged in the inlet channel, a controllable second inlet valve arranged downstream the controllable first inlet valve, an outlet channel arranged between the first portion of the cylinder volume and a pressure fluid outlet, and a controllable outlet valve arranged in the outlet channel.

2. 发明授权

US11078855B2 Internal combustion engine and method for controlling such an internal combustion engine 有权
公开(公告)号：US11078855B2
公开(公告)日：2021-08-03
申请号：US16645895
申请日：2018-09-10
申请人： FREEVALVE AB
发明人： Anders Höglund , Urban Carlson
IPC分类号： F02D41/02 , F02B75/02 , F02D13/02 , F02M35/10 , F02M61/14
摘要： An internal combustion engine includes combustion chambers, each having a controllable intake valve controlling an intake port, a controllable exhaust valve controlling an exhaust port, a piston, and a fuel injector. An intake manifold is connected to the intake port of each chamber. In catalytic converter warm-up mode, each chamber is driven in four-stroke operation including a 720 crank angle degrees cycle, and opens the intake port, starting to open in 90-180 CAD, and fully closes the intake port in 180-270 CAD, opens the exhaust port during the power stroke, starting in 405-495 CAD, opens the intake port during the exhaust stroke, starting in 610-690 CAD, and fully closes the exhaust port during the exhaust stroke in 630-710 CAD. Exhaust gas is forced into the intake manifold by the piston, mixing fuel and exhaust in the intake manifold, and fully closes the intake port in 700 to 720+20 CAD.

3. 发明授权

US10989149B2 Internal combustion engine and method for controlling such an internal combustion engine 有权
公开(公告)号：US10989149B2
公开(公告)日：2021-04-27
申请号：US16645873
申请日：2018-09-10
申请人： FREEVALVE AB
发明人： Anders Höglund , Urban Carlson
IPC分类号： F02M26/01 , F02D13/02 , F02D41/34
摘要： An internal combustion engine includes combustion chambers, each having a controllable intake valve opening and closing an intake port, a controllable exhaust valve opening and closing an exhaust port, a piston displaceable back and forth in the combustion chamber between a top dead center and a bottom dead center, and a fuel injector. The engine further including an intake manifold connected to the intake port of each combustion chamber. The engine can be operated in a low load mode, wherein each combustion chamber is driven in four-stroke operation including a 720 crank angle degrees cycle, and opens the intake port during the exhaust stroke, the intake port starting to open in 610-690 CAD, closing the exhaust port during the exhaust stroke, becoming fully closed in 630-710 CAD, forcing exhaust gas into the intake manifold by the piston, and mixing fuel and exhaust gas in the intake manifold.

4. 发明授权

US08800510B2 Internal combustion engine for a vehicle comprising at least one compressor cylinder at least one compressor cylinder connected to a compressed-air tank 有权
标题翻译：一种用于车辆的内燃机，包括至少一个与压缩空气罐连接的压缩机气缸的压缩机气缸
公开(公告)号：US08800510B2
公开(公告)日：2014-08-12
申请号：US13704833
申请日：2011-06-23
申请人： Urban Carlson , Anders Höglund , Christian Von Koenigsegg
发明人： Urban Carlson , Anders Höglund , Christian Von Koenigsegg
IPC分类号： F01L9/02
CPC分类号： F02B75/04 , F01L9/02 , F01L9/026 , F02B33/22 , F02B33/44 , F02B37/00
摘要： An internal combustion engine includes a working cylinder (2) including an inlet valve (6) and an adherent pneumatic inlet valve actuator (8), an outlet valve (7) and an adherent pneumatic outlet valve actuator (9), and a working piston (4), a compressor cylinder (3) including an inlet valve (10), an outlet valve (11), and a compressor piston (5) operated by the working piston (4), a compressed-air tank (14) connected to the compressor cylinder (3) via a first compressed-air conduit (15), and a second compressed-air conduit (16) that extends from the first compressed-air conduit (15), the first inlet valve actuator (8) and the outlet valve actuator (9) of the working cylinder (2) being connected to the second compressed-air conduit (16).
摘要翻译：内燃机包括具有入口阀（6）和粘附气动进气阀致动器（8）的工作缸（2），出口阀（7）和粘附气动出口阀致动器（9），以及工作活塞（4），包括入口阀（10），出口阀（11）和由工作活塞（4）操作的压缩机活塞（5）的压缩机气缸（3），连接有压缩空气罐经由第一压缩空气导管（15）到压缩机气缸（3）和从第一压缩空气导管（15）延伸的第二压缩空气导管（16），第一进气阀致动器（8）和工作缸（2）的出口阀致动器（9）连接到第二压缩空气管道（16）。

5. 发明授权

US10690022B2 Pneumatic actuator for an engine valve 有权
公开(公告)号：US10690022B2
公开(公告)日：2020-06-23
申请号：US15567035
申请日：2016-04-15
申请人： FREEVALVE AB
发明人： Anders Hoglund , Urban Carlson
IPC分类号： F01L9/02 , F01L1/053 , F01L13/06 , F01L13/08 , F01L1/344
摘要： Disclosed is an actuator for axial displacement of an object, including a cylinder volume having a first portion, and an actuator piston disc displaceable in the axial direction in the cylinder volume between inactive and active positions, an inlet channel between a pressure fluid inlet and the first portion of the cylinder volume, a first inlet valve body in the inlet channel, an outlet channel between the first portion of the cylinder volume and a pressure fluid outlet, and an outlet valve body in the outlet channel. The slave piston is displaceable in a bore, the slave piston displacing the first inlet valve body to an active position, and interacting with an opening connecting the bore and a control pressure channel, the opening having a first flow area with the slave piston in its inactive position and a larger second flow area with the slave piston in its active position.

6. 发明授权

US10077689B2 Combustion engine and gas handling system for pneumatic operation of a valve actuator 有权
公开(公告)号：US10077689B2
公开(公告)日：2018-09-18
申请号：US15025436
申请日：2014-10-08
申请人： FREEVALVE AB
发明人： Anders Hoglund , Urban Carlson , Christian Von Koenigsegg
IPC分类号： F01L9/02 , F15B11/06 , F15B1/26
CPC分类号： F01L9/026 , F15B1/26 , F15B11/06
摘要： A combustion engine includes, a first controllable engine valve (8) arranged to selectively open/close a combustion chamber (7) included in the combustion engine (1), and a gas handling system arranged to drive the first engine valve (8), which gas handling system includes a closed pneumatic pressure fluid circuit, wherein the closed pressure fluid circuit includes, coupled in series with each other, a compressor (31) and a valve actuator (10) that are operatively connected to the first engine valve (8). The combustion engine is characterized by the gas handling system further including a gas accumulator (38) that is connected with the closed pressure fluid circuit via at least one gas accumulator conduit (39), which includes a controllable valve (40). A gas handling system for pneumatic control of a valve actuator is also described.

7. 发明授权

US09885261B2 Actuator for axial displacement of an object 有权
公开(公告)号：US09885261B2
公开(公告)日：2018-02-06
申请号：US14903878
申请日：2014-07-07
申请人： FREEVALVE AB
发明人： Anders Hoglund
IPC分类号： F15B11/08 , F01L9/02 , F01L13/00 , F15B11/10 , F15B13/043 , F15B13/044
CPC分类号： F01L9/021 , F01L13/0036 , F15B11/10 , F15B13/0435 , F15B13/044
摘要： Disclosed is an actuator for axial displacement of an object, including an actuator piston disc displaceable in a cylinder volume, an inlet channel, a first inlet valve body arranged in the inlet channel, a second inlet valve body operatively connected to the actuator piston disc and arranged in the inlet channel, an outlet channel and an outlet valve body arranged therein. The actuator includes an electrically controlled pilot valve communicating a first control pressure to the first inlet valve body via a first control pressure channel and communicating a second control pressure to the outlet valve body via a second control pressure channel. The pilot valve places itself in either a resting state or an active state.

8. 发明申请

US20160237866A1 COMBUSTION ENGINE AND GAS HANDLING SYSTEM FOR PNEUMATIC OPERATION OF A VALVE ACTUATOR 审中-公开
标题翻译：用于气门执行器气动操作的燃烧发动机和气体处理系统
公开(公告)号：US20160237866A1
公开(公告)日：2016-08-18
申请号：US15025436
申请日：2014-10-08
申请人： FREEVALVE AB
发明人： Anders HOGLUND , Urban CARLSON , Christian VON KOENIGSEGG
IPC分类号： F01L9/02
CPC分类号： F01L9/026 , F15B1/26 , F15B11/06
摘要： A combustion engine includes, a first controllable engine valve (8) arranged to selectively open/close a combustion chamber (7) included in the combustion engine (1), and a gas handling system arranged to drive the first engine valve (8), which gas handling system includes a closed pneumatic pressure fluid circuit, wherein the closed pressure fluid circuit includes, coupled in series with each other, a compressor (31) and a valve actuator (10) that are operatively connected to the first engine valve (8). The combustion engine is characterized by the gas handling system further including a gas accumulator (38) that is connected with the closed pressure fluid circuit via at least one gas accumulator conduit (39), which includes a controllable valve (40). A gas handling system for pneumatic control of a valve actuator is also described.
摘要翻译：内燃机包括：第一可控发动机气门（8），其布置成选择性地打开/关闭包括在内燃机（1）中的燃烧室（7）;以及气体处理系统，其布置成驱动第一发动机气门（8）所述气体处理系统包括封闭的气动压力流体回路，其中所述闭合压力流体回路包括彼此串联连接的压缩机（31）和阀致动器（10），所述压缩机（31）和阀致动器（10）可操作地连接到所述第一发动机气门）。燃烧发动机的特征在于气体处理系统还包括气体蓄积器（38），其通过包括可控阀（40）的至少一个气体收集器管道（39）与闭合压力流体回路连接。还描述了用于阀致动器的气动控制的气体处理系统。

9. 发明申请

US20160237864A1 COMBUSTION ENGINE AND MANTLE ASSEMBLY THEREFORE 审中-公开
标题翻译：燃烧发动机和人造装置
公开(公告)号：US20160237864A1
公开(公告)日：2016-08-18
申请号：US15025396
申请日：2014-10-08
申请人： FREEVALVE AB
发明人： Anders HOGLUND , Urban CARLSON , Christian VON KOENIGSEGG
IPC分类号： F01L9/02 , F02F1/24
CPC分类号： F01L9/02 , F02F1/24 , F02F2001/245
摘要： A combustion engine includes, a cylinder head including a controllable first engine valve arranged to selectively open/close a combustion chamber included in the combustion engine, a first valve actuator operatively connected to the first engine valve, which first valve actuator includes at least one inlet opening for pressure fluid and at least one outlet opening for pressure fluid, and a closed pressure fluid circuit, wherein the first valve actuator is arranged in the closed pressure fluid circuit. The combustion engine further includes a cylinder head chamber that forms part of the closed pressure fluid circuit and that is delimited by the cylinder head and at least a first cylinder head mantle, wherein the at least one outlet opening of the first valve actuator is in fluid communication with the cylinder head chamber. A mantle assembly for a cylinder head of a combustion engine is also described.
摘要翻译：内燃机包括：气缸盖，其包括可选择地打开/关闭包括在内燃机中的燃烧室的可控制的第一发动机气门，与第一发动机阀可操作地连接的第一阀致动器，该第一阀致动器包括至少一个入口用于压力流体的开口和用于压力流体的至少一个出口，以及封闭压力流体回路，其中第一阀致动器布置在闭合压力流体回路中。所述内燃机还包括气缸盖室，其形成所述封闭压力流体回路的一部分并且由所述气缸盖和至少第一气缸盖罩限定，其中所述第一阀致动器的所述至少一个出口开口处于流体与气缸盖室连通。还描述了用于内燃机的气缸盖的地套组件。

10. 发明授权

US12006851B2 Pressure fluid handling system 有权
公开(公告)号：US12006851B2
公开(公告)日：2024-06-11
申请号：US17435228
申请日：2020-02-25
申请人： FREEVALVE AB
发明人： Urban Carlson , Rowhan Toi Neilson
IPC分类号： F01L9/16 , F01L9/40 , F01P5/10 , F15B1/04 , F25B45/00 , G05D16/20
CPC分类号： F01L9/16 , F01L9/40 , F01P5/10 , F15B1/04 , F25B45/00 , G05D16/208 , F25B2345/006 , F25B2400/19 , F25B2600/2523
摘要： A pressure fluid handling system includes a closed pressure fluid circuit. The pressure fluid circuit includes, connected in series, a compressor and a pressure sink and a primary pressure fluid route from the compressor to the pressure sink and a secondary pressure fluid route from the pressure sink to the compressor. The pressure fluid handling system further includes a pressure fluid accumulator connected to the pressure fluid circuit via a first pressure fluid accumulator conduit. The first pressure fluid accumulator conduit includes a pump configured to pump pressure fluid from the pressure fluid circuit to the pressure fluid accumulator to lower the pressure levels in the pressure fluid circuit, and in that the pressure fluid handling system includes a controllable component for returning the pressure fluid from the pressure fluid accumulator to the pressure fluid circuit to increase the pressure levels in the pressure fluid circuit.

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